Clean Water Act discharge permit · NPDES TX0140091
OHLP MONT BELVIEU NGL FRACTIONATION PLANT, Baytown, TX: NPDES TX0140091 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 27Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
OHLP MONT BELVIEU NGL FRACTIONATION PLANT, held by ONEOK HYDROCARBON LP, holds NPDES permit TX0140091, which discharges to Cedar Bayou. EPA’s file records it issued December 4, 2018 and expiring December 31, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | OHLP MONT BELVIEU NGL FRACTIONATION PLANT |
|---|---|
| Permittee as filed | ONEOK HYDROCARBON LP |
| NPDES ID | TX0140091 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 4, 2018 |
| Expiration date | December 31, 2023 |
| Address | Baytown, TX 77523 |
| Receiving water | CEDAR BAYOU |
| Subwatershed | Lynchburg Canal-Old River (HUC 120302030304) |
| Other EPA IDs (FRS) | RCRA handler TXT490012093; ICIS-AIR source TX0000004807100047 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 30Pollutants on file
- 27Under a numeric limit
- 7With a violation of any kind
- 4With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| Oxygen, dissolved [DO] | 0 | 30 | 9 | November 30, 2025 | 53% over the limit |
| Chlorine, total residual | 2 | 26 | 8 | January 31, 2022 | 31,479% over the limit |
| pH | 4 | 44 | 2 | June 30, 2026 | |
| Flow, in conduit or thru treatment plant | 8 | 87 | 1 | October 31, 2024 | 0% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 82 | 0 | ||
| Oil & Grease | 0 | 3 | 0 | ||
| Carbon, tot organic [TOC] | 0 | 3 | 0 | ||
| Whole effluent toxicity - retest #1 | 2 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 2 | 0 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 2 | 0 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 1 | 0 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 1 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 1 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 1 | 0 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 1 | 0 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 1 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 1 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 1 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 1 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 1 | 0 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 0 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 0 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 1 | 0 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Menidia menidia | 1 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 1 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 1 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 1 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 1 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 1 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 1 | 0 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES TX0140091.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, TX0140091.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID TX0140091 there.
Nearby on the register
- Discharge permits in Baytown
- Every permit record in Baytown, A to Z
- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.